Calculating-machine.



P; TRINKS.

CALCULATING magma. v APPLICATION FILED MAR. 16,1914 1 1 18 830 Patented Nov. 24, 191% '2 SHEETS-SHEET 1.

FRANZ TRIN KS, F BRUNSWICK, GERMANY.

CALCULATING-MACHINE.

To all whom it may concern 4 Be it known that I, FRANZ THINKS, manufacturer, citizen of the Duchy of Brunswick,

during each rotation-of the crank. chine of this construction is shown for eX- Empire of Germany, residing at Brunswick, Germany, have invented certain new and useful Improvements in Calculating- Machines, of'which the following is a specification. I

My invention relates to improvements in calculating machines, and more particularly in calculating machines in which a setting mechanism'is provided which consists of setting disks provided with radially shiftable teeth representing the values to be set on the disks and cam disks for shifting in each setting disk the desired number'of' teeth into operative positions, and in which furthermore mechanism is provided for counting the number of revolutions, of a crank arran ed for operating the setting disks and transmitting the values set thereon to the numeral wheels of a registering mechanism. In machines of this class the registering mechanism is mounted on a carriage which is slidable in a direction parallel to the aXis of the setting mechanism, so that the numeral wheels of the registering mechanism can be thrown into coiiperation with setting disks of different orders. At the left of the registering mechanism, and ordinarily 00- axially therewith the numeral wheels of the revolutions counting mechanism are mounted which coiiperate with a single tooth wheel connected with the crank and adapted to ad Vance or return one sf the numeral wheels A maample in my prior Patent Nr. 97.358, dated DecemberQO, 1910. If in this machine the carriage is shifted in order to bring the setting disks into position for coiiperati on with numeral wheels of higher order, also the single tooth wheel is shifted into position for cotiperation with a numeral wheel of higher order, because the single tooth Wheel and the cotiperating revolutions counting mechanism are shifted relatively to each other by shifting the carriage.

lVnen performing divisions on the calculating machine, and the numbers are large, it is not possible to use all the orders of the numeral wheels for indicating the quotient and particularly the decimals of the same.

For example, if the calculating machine is rovided with seven settin disks ten nu- Specification of Letters Patent.

Patented Nov. 24, 1914.,

Application filed March 16, 1914. Serial lilo. 825,069.

meral wheels in the registering mechanism, and eight numeral Wheels in the revolutions counting mechanism, and if it is desired to perform on the machine the following divisionz and to obtain several decimals, the division is at first performed in the usual way:

whereupon the revolutions counting mechanism shows the quotient 4.390, and the registering mechanism displays the remainder:

rately noted for taking down the final result,

because the quotient which is obtained by the following step of the calculation appears on the same numeral wheels of the revolutions counting mechanism, so that the new quotient would be added if the first one were not erased, while they must be placed one beside the other. This addition would of. course give a wrong result.

The object of the improvements is to provide a calculating machine in which it is not nccessarv to separately write down the quotients of the first calculation, and by which wrong results are safely avoided.

lVith this object in view my invention consists in so mounting the driving member for the revolutions counting mechanism or the single tooth wheel, that it can be shifted into position fbr coiiperation with any one of the numeral wheels of the revolutions counting, mechanism without shifting the carriage on which the registering and revolutions counting mechanisms are mounted.

Therefore the operating member can be shifted for exampleizi such a way, that it acts on the last numeral wheel at the left even the carriage is in its extreme left hand position. i

For the purpose of explaining the invention an example embodying the same has been shown in the accompanying drawings,

.in which the same letters of reference have been used in all the views to indicatecorre= sponding parts.

In said drawings-Figure 1, is a front view of a calculating machine with the cover of the casing partly removed, Fig. 2, is-a cross-section taken on the line 2--2 of Fig. 1, Fig. 3, is a cross-section taken on the line 33 of Fig. l, and Fig. at, is an enlarged detail view showing the shiftable single tooth wheel of the revolutions counting mechanism.

Referring to the example illustrated in the drawings, the setting mechanism consists of setting disks a which are mounted on a main shaft (Z, and which are equipped with nine radially shiftable teeth a For shifting the said teeth cam disks a are provided which are provided with hand pieces a projecting through slots to of the cover a of the machine casing. The shaft (Z and the setting disks mounted thereon are adapted to be rotated by means of a crank (Z through the intermediary of gear wheels (Z and'd". When the setting disks a are thus rotated those of the teeth a which have been shifted into operative positions engage in the teeth of intermediate gear wheels 72 which are in mesh with teeth b of numeral wheels of the registering mechanism Z). The registering mechanism and the intermediate gear wheels 72 are mounted on a carriage g which is adapted to be shifted in a direction teeth are in mesh with intermediate gear" wheels 0 which are loosely mounted on a common shaft an. F or resetting the registering mechanism Z) and the revolutions counting mechanism a wing nuts 79 and c are provided which are located at opposite sides of the carriage 2 1 The revolutions counting mechanism is adapted to be operated by means of a single tooth j which is mounted on the machine frame a and which is adapted to be rotated from the shaft (Z of the setting disks through the intermediary of gear wheels 6 and f. In my improved machine the said single tooth is shiftably mounted in such a way, that it can be thrown into cooperation with any one of the intermediate gear wheels 0 without shifting the carriage 1/. In the example shown in the drawings the gear Wheel 7 is connected to a subsidiary shaftg which is mounted-parallel to the shaft w of the intermediate gear wheels, and which is provided with notches h corresponding to the number and relative distance of the numeral wheels of the revolutions counting mechanism. On the said shaft a sleeve is shiftably mounted which carries the single tooth The single tooth can be set on the shaft 9 in the positions corresponding to the numeral wheels of the revolutions countingv mechanism by means of a locking lever in which is acted upon by a spring land isadaptcd to be operated by the hand of the operator. At one of its ends the said locking lever projects beyond the circumference of the sleeve is at d at its opposite end it is -provided with a tooth n which is adapted to engage in the notches it. \Vhen depressing the locking lever m the sleeve'k and the single tooth j are disconnected from the shaft by the withdrawal of tooth n from notch h, whereupon the sleeve can be shifted and afterward fixed in the new position. In order that the single tooth may more easily be disconnected from the shaft a slide 2 maybe provided which is slidahle within a slot 0 made in the cover 0 of the machine casing and parallel to the subsidiary shaft g The slide is provided with a tongue .2 which engages in an annular groove in the sleeve 7;, and is also provided with a spring actuated pin 2' for releasing the locking lever m.

In order that it be impossible to turn the driving member or single tooth y' into a position in which the said tooth cannot cooperate with any of the numeral wheels of the revolutions counting mechanism a lockorder that when rotating the machine crank in either direction always one of the bars 0 is operative. If upon rotation of the machine crank the single'toot-h is in correct position it passes through the notches r of the bars. and if it is not in correct position rotation is prevented by the teeth p of the bar 0. V I

-When transmitting the remainder of the first step of the calculation to the left hand numeral wheels of the rcgistering-mechw nism, that is in the example referred to above the number 333,710. ,an additional r0- tation of the machine crank is necessary.- In order that this operation of the machine crank may not result in a wrong registration in the revolutions counting-mechanism, means are provided for temporarily throwing the single tooth entirely out of operation.* This may be done in various ways. To show what may be done the shaft is provided near its left hand end with a notch h and the sleeve 70 is adapted tobe shifted with the single tooth jbevond the last'one of the numeral wheels of the revolutions counting mechanism and into position in As shown such which the single tooth j is out of engagement with any of the numeral wheels'and in register with the notch k Y While in describing the mechanism reference has been made to a simple embodiment thereof, l wish it to be understood that my invention is not limited to the construction shown in the drawings. Other means will readily suggest themselves to those skilled in the art. For example the single tooth may be so mounted as to be shiftable on its ,sleeve, in which case it is shifted out of operative position without shifting the sleeve.

I claim herein as my invention:

1. In a calculating machine the combination with the setting mechanism, the registering mechanism, and the revolutions counting mechanism, said revolutions counting mechanism comprising a plurality of nu-- meral wheels, and said setting mechanism and said registering and revolutions counting mechanisms being shiftablerelatively to each other, of an operating member for the revolutions counting mechanism adapted to be shifted independently of the registering mechanism into position for cooperation with any one of the numeral wheels of the revolutions counting mechanism.

2. In a calculating machine the combination with the setting mechanism, the registcring mechanism, and the revolutions counting mechanism, said revolutions counting mechanism comprising a plurality of numeral wheels, and said setting mechanism and said registering and revolutions countmg mechanisms being shiftable relatively to each other, of an operating member for the revolutions counting mechanism adapted to be shifted independently of the registering mechanism into position for cooperation with any one of the numeral wheels of the revolutions counting mechanism, and means inoperative when the operating member is in position for cooperation with one of the numeral wheels to lock the operating mem 'ber. V

In a calculating machine the combination with the setting mechanism, the registering mechanism, and the revolutions counting mechanism, said revolutions counting mechanism comprising a plurality of numeral wheels, and said setting mechanism and said registering and revolutions counting mechanisms being shiftable relatively to each other, of an operating member for the revolutions counting mechanism adapted to be shifted independently of the registering provided with notches for permitting the.

passage of the operating member when in proper position with relation to the nu meral wheels of the revolutions counting mechanism.

4- In a calculating machine the combination with the setting mechanism, the registering mechanism, and the revolutions counting mechanism comprising a plurality of numeral wheels, and said setting mecha- 'nism and said registering and revolutions counting mechanisms being shiftable relatively to each other, of an operating member for the revolutions counting mechanism adapted to be shifted independently of the registering mechanism into position for cooperation with any one of the numeral wheels of the revolutions counting mechanism, and at least one bar located inposition for locking the operating member against operation and provided with notches for permitting the passage of the operating member when in proper position with relation' to the numeral wheels of the revolutions counting mechanism and with a notch permitting the passage of the operating member when out of position for cooperation with the numeral wheels.

5. In a calculating machine the combination with the setting mechanism, the registering mechanism, and the revolutions counting mechanism comprising a plurality of numeral wheels, and said setting mechanism and said registering and revolutions counting mechanisms being shiftable relatively to each other, of an operating member for the revolutions counting mechanism adapted to be shiftedindepcndently of the registering mechanism into position for cooperation with any one of the numeral wheels of the revolutions counting mechanism, and means to temporarily render said operating member inoperative.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

FRANZ THINKS.

Witnesses AUeUsr HnIMso'rH, RICHARD K'L LBs, 

